I'm cross-posting here because I'm sure people here will know the answers:

What I'd like to do, but am not sure how:I want to save my old BTS owner key somewhere and then update the BTS owner key to a new one. Once it's updated, the old key won't give access to the account, so I can go and drop the old key into the peerplays wallet without fear of unforseen security leaks.

How is the BTS owner key changed? I've looked at the permissions tab in the bitshares.org wallet and it's not obvious enough to me to be worth going and modifying all my permissions.

I believe you have to add a new (2nd) key, then you'll be able to delete the original one.

One question I have is how to generate the new 2nd key. The web wallet doesn't seem to be giving me the option anywhere.

That's a very good point. I've previously resorted to creating throw-away accounts, then borrowing the keys generated for those accounts by the software, to repurpose elsewhere. That would be my recommended approach.

Otherwise there was a bitshares paper wallet generator that also spat out fresh keys, although it would seem best to take the former approach.

Would it be safer to create a new Bitshares account andtransfer your bitshares to that account? Then use theprivate key of the original (now empty) account to claimyour Peerplays. If that private key gets compromised/revealedto a third-party it doesn't really matter because the accountit controls is now empty.

Would it be safer to create a new Bitshares account andtransfer your bitshares to that account? Then use theprivate key of the original (now empty) account to claimyour Peerplays. If that private key gets compromised/revealedto a third-party it doesn't really matter because the accountit controls is now empty.

That would certainly work if you're not too in love with your original account. There is better way to do it, but I haven't dug enough yet to be sure I know what that way is.